Inventor · disambiguated record
Chang Mi
Also filed as: MI CHANG
10 granted patents·3 pending applications·116 citations·filing 2017–2025
88Inventor score
Files withBEIJING ROBOROCK TECHNOLOGY CO LTD7BEIJING ROCKROBO TECH CO LTD5SHENZHEN ROCK TIMES TECH CO LTD1
Top patents by PatentIndex Score
13 records- 0190USD867987SBase stationBEIJING ROCKROBO TECH CO LTD·Filed 2017·Granted Nov 26, 2019·36 cites·1 claims
- 0290USD867701SCleaning robotBEIJING ROCKROBO TECH CO LTD·Filed 2017·Granted Nov 19, 2019·37 cites·1 claims
- 0379US2025339010A1Side brush and intelligent cleaning deviceBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2025·Application pending·0 cites
- 0477US2024341551A1Intelligent cleaning deviceBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2024·Application pending·0 cites
- 0575USD919210SCleaning robotBEIJING ROCKROBO TECH CO LTD·Filed 2017·Granted May 11, 2021·16 cites·1 claims
- 0674USD868407SCleaning padBEIJING ROCKROBO TECH CO LTD·Filed 2017·Granted Nov 26, 2019·15 cites·1 claims
- 0768US12048412B2Intelligent cleaning deviceBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2021·Granted Jul 30, 2024·0 cites·14 claims
- 0864US12383111B2Side brush and intelligent cleaning deviceBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2021·Granted Aug 12, 2025·0 cites·14 claims
- 0957USD868408STankBEIJING ROCKROBO TECH CO LTD·Filed 2017·Granted Nov 26, 2019·7 cites·1 claims
- 1054US12090785B2Universal wheel assembly and smart cleaning device having sameBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2021·Granted Sep 17, 2024·0 cites·13 claims
- 1154US11659972B2Moisture-proof mat and intelligent cleaning systemSHENZHEN ROCK TIMES TECH CO LTD·Filed 2018·Granted May 30, 2023·0 cites·19 claims
- 1253USD944479SBrushBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2019·Granted Feb 22, 2022·5 cites·1 claims
- 1350US2025057383A1Self-cleaning maintenance station and self-cleaning systemBEIJING ROBOROCK TECHNOLOGY CO LTD·Filed 2022·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →